Lactose Intolerance Symptoms

What are the symptoms of Lactose Intolerance?
Common symptoms of lactose intolerance include:
 * pain and swelling in the tummy,
 * irritability,
 * failure to gain weight,
 * abdominal bloating,
 * Diarrhea,
 * Nausea,
 * Abdominal cramps,
 * Floating stools,
 * Foul-smelling stools,
 * Gas (flatulence),
 * Malnutrition,
 * Slow growth,
 * Weight loss.